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Marta Kostyuk
Right-Handed · 175cm
Marta Kostyuk is a professional tennis player from Ukraine, 24 years old, ranked No. 10 on the WTA singles rankings as of September 21, 2026. Career-high ranking: No. 10 (September 21, 2026). Kostyuk has won 6 career singles titles from 14 finals (3 at tour level, 3 at WTA 125 / ITF). Most recent title: Mutua Madrid Open - Madrid (2026), beating Andreeva 6-3, 7-5 in the final. In 2026 the record stands at 36-10 (13-4 at Grand Slam level, 22-6 at Tour level, 1-0 at Team events level). Last match: lost to Samsonova 4-6, 6-2, 7-5 in the QF at Guadalajara Open Akron - Guadalajara, September 17, 2026. Best surface by career win rate: clay (45–27). The Climb: first ITF title in 2017, Grand Slam main-draw debut in 2018, first week in the top 100 in 2020, first tour-level title in 2023 (ranked No. 55 at the time).
The Climb
From the Futures to the Slams
The milestones that mark a professional career, with the ranking at each step.
- Aug 2016First professional matchLost to Ploskina in the first round at Kharkiv
- May 2017First ITF titleDunakeszi, d. Pera 6-4, 6-3
- Jan 2018Grand Slam qualifying debutAustralian Open - Melbourne: beat Rodionova in the first round of qualifying
- Jan 2018Grand Slam main-draw debutAustralian Open - Melbourne: beat Peng in the first round
- Jan 2018to the monthFirst week in the top 300No. 243 · Direct entry to Challengers
- Jan 2018to the monthFirst week in the top 250No. 243 · Grand Slam qualifying territory
- Apr 2018No. 156 at the timeFirst tour-level main drawPorsche Tennis Grand Prix - Stuttgart: beat Lottner in the first round
- Nov 2020to the monthFirst week in the top 100No. 98 · Direct entry to the Slams
- Nov 2021to the monthFirst week in the top 50No. 50
- Dec 2022No. 71 at the timeFirst WTA 125 main drawOpen BLS de Limoges - Limoges: beat Garland in the first round
- Mar 2023No. 55 at the timeFirst tour-level titleATX Open - Austin, d. Gracheva 6-3, 7-5
- May 2024First week in the top 20No. 20
- Sep 2026First week in the top 10No. 10
- Sep 2026Career-high rankingNo. 10
- Sep 2026Now: No. 10
Call the climb
Say where this player will be, and by when. Graded from the weekly rankings; the record lives on My Slip.
Why we're watching
Recent results
| Date | Tournament | Rd. | Opponent | Result |
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The last ten singles matches, from the results feed. Click a column header to sort.
Career record by surface
Ranking, recent weeks
Titles & finals
Win–loss by level · this season
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